JP2014112019A - Multitube heat exchanger, and liquid introduction member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multitube heat exchanger and a liquid introduction member, capable of preventing accumulation of solid matters in a treated liquid regardless of arrangement of circulation tubes stored in a storage tube.SOLUTION: A multitube heat exchanger includes: a plurality of circulation tubes 20 in which a treated liquid including solid matters is circulated; a closing plate 30 to which the circulation tubes 20 are fixed in a state of exposing opening portions 22 of the circulation tubes 20 at one face 31; a storage tube 40 storing the circulation tubes 20 inside thereof, and constituted to circulate a heat exchange medium in an internal flow channel 42 closed by the closing plate 30; a communicating portion 60 communicated with the opening portions 22 of the circulation tubes 20 opened at one face 31 of the closing plate 30 in common; and an introduction passage 70 communicated with the communicating portion 60 for introducing the treated liquid to the communicating portion 60, the introduction passage 70 being formed to supply the treated liquid to the communicating portion 60 to increase a speed in the direction toward the communicating portion 60 along the one face 31 of the closing plate 30.

Description

  The present invention relates to a multitubular heat exchanger and a liquid introduction member, and is particularly useful when applied to a liquid such as a fluid food containing solid matter.

  Conventionally, in order to efficiently heat or cool the liquid to be treated, a multi-tube heat exchanger has been used. A multi-tubular heat exchanger has a plurality of flow pipes (tubes) arranged in parallel inside a storage pipe (shell), and a heat exchange medium is circulated inside the storage pipe so that the heat exchange medium and the flow pipe are inside. Heat exchange with the liquid to be treated.

  Specifically, the plurality of flow pipes are fixed to the closing plate so that the opening of each flow pipe is exposed on one surface. Then, the multi-pipe is provided by storing the flow pipe in the storage pipe, closing the opening of the storage pipe with a closing plate, and providing an introduction path so as to introduce the liquid to be treated into each opening of the flow pipe opened in the closing plate. The type heat exchanger is configured.

  Here, when the liquid to be treated contains a solid substance, for example, when it contains a fiber called “Sano” like fruit juice, “Sano” appears on the surface of the closing plate. In some cases, accumulation may occur between the openings of the distribution pipe.

  In view of this, a multi-tube heat exchanger that prevents fiber accumulation by fixing the flow pipe to the closing plate so that the interval between the flow pipes is larger than the size of the fiber has been proposed (for example, Patent Document 1). reference).

  However, when adjusting the interval between the flow pipes according to the size of the fiber, the multi-pipe heat exchanger must be manufactured by setting the interval for each beverage to be manufactured, which increases the manufacturing cost and the manufacturing process. There is a problem that it is complicated.

Japanese Patent No. 4296117

  The present invention has been made in view of the above circumstances, and is a multitubular heat exchange that can prevent the accumulation of solid matter in a liquid to be treated without depending on the arrangement of a flow pipe accommodated in a storage pipe. An object is to provide a container and a liquid introduction member.

  A first aspect of the present invention that solves the above-described problems includes a plurality of flow pipes through which a liquid to be treated containing solid matter flows, and the flow pipes such that an opening of the flow pipe is exposed on one surface. A closed plate, a storage tube configured to store the flow tube therein, and a heat exchange medium to flow through the inside sealed by the close plate, and an opening on one surface of the closed plate A communication part that communicates in common with the opening of the flow pipe, and an introduction path that communicates with the communication part and introduces the liquid to be treated into the communication part. The multi-tube heat exchanger is configured to supply the liquid to be processed to the communication portion so as to increase the speed in the direction toward the communication portion along one surface.

  In the first aspect, since the introduction path is configured to increase the speed of the liquid to be processed along one surface of the closing plate and then supply the liquid to the communicating portion, the solid material is formed on the surface of the closing plate. Can be prevented from adhering and depositing. As described above, the multi-tubular heat exchanger prevents the solid matter from accumulating on the surface of the closing plate by controlling the flow rate and direction of the liquid to be processed. That is, it becomes unnecessary to design and manufacture another type of multi-tubular heat exchanger according to the solid matter, thereby reducing the manufacturing cost and simplifying the manufacturing process.

  According to a second aspect of the present invention, in the multitubular heat exchanger described in the first aspect, the introduction path extends in a direction along one surface of the closing plate, and has a width toward the communication portion. The multi-tube heat exchanger is characterized by being formed to be narrow.

  In the second aspect, the liquid to be processed can be accelerated along one surface of the closing plate in the introduction path.

  According to a third aspect of the present invention, in the multitubular heat exchanger described in the first or second aspect, the introduction path is formed from the first opening on the opposite side of the communication part of the introduction path. The multitubular heat exchanger is characterized in that it is formed in a tapered shape so that the width becomes narrower toward the second opening that becomes the boundary with the communication portion.

  In the third aspect, the liquid to be processed can be accelerated without solid matter adhering to and depositing on the introduction path.

  According to a fourth aspect of the present invention, in the multitubular heat exchanger described in the first aspect, at least a pair of the multitubular heat exchanger body including the flow pipe, the closing plate, and the storage pipe, A first communication part that communicates in common with the opening of the flow pipe of the multi-tube heat exchanger body, and a common communication with an opening of the flow pipe of the other multi-tube heat exchanger body. A liquid introduction member including the second communication portion and the introduction path connecting the first communication portion and the second communication portion, and the liquid introduction member is attached to one of the multi-tubular heat exchanger main bodies. Formed so that the area of the opening serving as the boundary between the connected first communication part and the introduction path is narrower than the area of the opening of the flow pipe of one of the multi-tubular heat exchanger bodies It is in a multi-tubular heat exchanger characterized by the above.

  In the fourth aspect, the pair of heat exchanger main bodies are connected via the liquid introduction member. On the other hand, that is, the liquid to be processed that has flowed out of the heat exchanger body on the upstream side flows into the first communication portion. The opening at the boundary between the first communication portion and the introduction path is narrower than the area of the opening serving as the outlet of the flow pipe of the heat exchanger body. Therefore, it is possible to increase the speed of the liquid to be processed from the first communication portion to the introduction path. As a result, the liquid to be processed can be supplied in the vicinity of the closing plate of the heat exchanger body on the downstream side, that is, in the direction of the closing plate, and solid matter in the liquid to be processed can be prevented from accumulating. can do. In particular, without providing a structure for accelerating the liquid to be treated in the introduction path, the opening area of the opening at the boundary between the first communication portion on the upstream side and the introduction path is set to the opening of the flow pipe of the heat exchanger body. By setting in relation to the opening area of the liquid, the liquid to be processed can be accelerated.

  According to a fifth aspect of the present invention, there are provided a plurality of flow pipes through which a liquid to be treated containing a solid material flows, and a closure in which the flow pipe is fixed so that an opening of the flow pipe is exposed on one surface. A liquid attached to a multi-tubular heat exchanger main body comprising a plate and a storage tube configured to store the flow tube inside and sealed by the closure plate so that a heat exchange medium flows therethrough An introduction member, which is detachably attached to the storage pipe and communicates in common with an opening of the flow pipe that is open on one surface of the closing plate; and a communication part that communicates with the communication part. An introduction path for introducing the liquid to be treated into the part, and the introduction path causes the liquid to be treated to enter the communication part so as to increase in a direction toward the communication part along one surface of the closing plate. The liquid introduction member is characterized by being configured to supply

  In the fifth aspect, the liquid to be processed can be supplied to the heat exchanger main body so that the solid matter does not accumulate on the surface of the closing plate. Furthermore, the liquid introduction member can be removed from the heat exchanger body, and maintenance and replacement such as cleaning can be easily performed individually.

  ADVANTAGE OF THE INVENTION According to this invention, the multi-tube heat exchanger and liquid introduction member which can prevent accumulation of the solid substance in a to-be-processed liquid are provided irrespective of arrangement | positioning of the flow pipe accommodated in the storage pipe. .

It is principal part sectional drawing of a multitubular heat exchanger. It is the sectional view on the AA line of FIG. It is a side view of a liquid introduction member. It is a top view of a liquid introduction member. It is CC sectional view taken on the line of FIG. It is the DD sectional view taken on the line of FIG. It is the BB sectional drawing of FIG. 1 explaining the condition of the to-be-processed liquid introduce | transduced on the closing plate of a multi-tube heat exchanger. It is principal part sectional drawing which shows the usage example of a liquid introduction member. It is principal part sectional drawing of a multitubular heat exchanger.

  Hereinafter, modes for carrying out the present invention will be described. In addition, description of embodiment is an illustration and this invention is not limited to the following description.

<Embodiment 1>
A multitubular heat exchanger (hereinafter also referred to as a heat exchanger) according to this embodiment will be described with reference to FIGS. 1 and 2.

  As shown in the figure, the heat exchanger 1 is detachably attached to a multi-tube heat exchanger body 10 (hereinafter also referred to as a heat exchanger body 10) that performs heat exchange of the liquid to be treated, and to the heat exchanger body 10. The apparatus includes a liquid introducing member 50 (also simply referred to as an introducing member 50), and performs heat exchange on a liquid to be treated that contains solid matter. Although a solid and a to-be-processed liquid are not specifically limited, The fruit drink etc. which contain solids, such as a fiber derived from a fruit and vegetables, etc. can be mentioned as a to-be-processed liquid.

  The heat exchanger body 10 includes a flow pipe 20 through which the liquid to be treated flows, a closing plate 30 that fixes the flow pipe 20, and a storage pipe 40 in which the flow pipe 20 is stored.

  The flow pipe 20 is a member through which the liquid to be processed flows, and the liquid to be processed flows through the flow path 21 inside the flow pipe 20. In the present embodiment, the flow pipe 20 is formed in a cylindrical shape.

  The closing plate 30 is a plate-like member to which the flow pipe 20 is fixed so that the opening 22 of the flow pipe 20 is exposed on one surface 31. Specifically, it has a shape capable of sealing an opening 41 of a storage tube 40 described later, and a plurality of through holes 32 through which the flow tube 20 is inserted are provided.

  In each through hole 32, a plurality of (seven in this embodiment) flow pipes 20 are inserted, and the opening 22 of the flow pipe 20 and the one surface 31 of the closing plate 30 are substantially flush with each other. It is fixed to the closing plate 30 by welding or the like. Although not particularly illustrated, the other side of the flow pipe 20 is similarly fixed by another closing plate 30. In this way, the flow pipes 20 whose both ends are fixed to the closing plate 30 are arranged substantially in parallel at a predetermined interval.

  The storage tube 40 is a tubular member configured to store the flow tube 20 in the internal flow channel 42 and to allow the heat exchange medium to flow through the flow channel 42 sealed by the closing plate 30. In the present embodiment, the storage pipe 40 is formed in a cylindrical shape having an inner diameter that can accommodate the plurality of flow pipes 20 in the flow path 42.

  The closing plate 30 to which the circulation pipe 20 is fixed seals one opening 41 of the storage pipe 40 and is fixed to the storage pipe 40. Although not particularly illustrated, another closing plate 30 to which the opposite end of the circulation pipe 20 is fixed seals the other opening of the storage pipe 40 and is fixed to the storage pipe 40. That is, the flow pipes 20 that are substantially parallel to each other are disposed in the flow path 42 of the storage pipe 40, and the openings at both ends of the storage pipe 40 are sealed by the closing plates 30.

  A supply port 43 that communicates with the flow path 42 of the storage tube 40 is provided in the vicinity of one opening 41 of the storage tube 40. Although not particularly illustrated, a discharge port communicating with the flow path 42 is provided in the vicinity of the other opening of the storage tube 40. The heat exchange medium is supplied from the supply port 43 to the flow path 42 of the storage tube 40 sealed by the closing plate 30, and the heat exchange medium is discharged from the discharge port.

  In this way, the heat exchange medium supplied to the flow path 42 of the storage pipe 40 comes into contact with the surface of the flow pipe 20 disposed in the flow path 42, so that the processing target in the flow path 21 of the flow pipe 20 is processed. Heat exchange with liquid is possible.

  The introduction member 50 will be described with reference to FIGS. 1 and 3 to 6. As shown in these drawings, the introduction member includes a communication part 60 and an introduction path 70.

  The communication part 60 is a member that constitutes a flow path of the liquid to be processed that is communicated in common with the opening 22 of the flow pipe 20 that is open on the one surface 31 of the closing plate 30. Specifically, the communication part 60 has a bottomed cylindrical flow path forming member 61 having an opening 64 on one surface, and the internal space of the communication part 60 and the flow path part 62 through which the liquid to be processed flows. It has become.

  A flange portion 63 protruding outward is formed on the opening 64 side of the flow path forming member 61. On the other hand, a flange portion 33 protruding outward is also formed on the one surface 31 side of the closing plate 30. The opening 64 is formed in a size that allows all the flow pipes 20 to be included inside. The flange portion 33 and the flange portion 63 are fastened and fixed by a clamp portion 80 in a state where they are in contact with each other. The flange portion 33 and the flange portion 63 can be removed by loosening the clamp portion 80.

  In this way, the communication portion 60 is fixed to the closing plate 30, so that the flow path portion 62 of the communication portion 60 is common to all the opening portions 22 of the flow pipe 20 that open to the one surface 31 of the closing plate 30. Communicate. As a result, the liquid to be processed supplied to the flow path portion 62 is distributed and flows into each flow pipe 20.

  In addition, since it is possible to loosen the clamp part 80 and remove the communication part 60 from the closing plate 30, maintenance such as removing the communication part 60, that is, the introduction member 50 from the heat exchanger main body 10 and cleaning it, can be performed. It has become easier.

  The communication part 60 is provided with an introduction path 70 that constitutes a flow path for introducing the liquid to be processed into the communication part 60. The introduction path 70 is a member that constitutes a flow path for supplying the liquid to be processed to the communication part 60 so as to increase the speed in the direction toward the communication part 60 along the one surface 31 of the closing plate 30.

  “A direction toward the communication portion 60 along the one surface 31 of the closing plate 30” includes a component parallel to the closing plate 30 in the direction component of the liquid to be processed flowing into the communication portion 60 from the introduction path 70. That means. In particular, it is preferable to configure the introduction path 70 so that the liquid to be processed is supplied to the flow path portion 62 in parallel with the closing plate 30. Hereinafter, this direction is also simply referred to as a closing plate direction.

  Specifically, the introduction path 70 is a tubular member formed in a hollow shape, and extends outward from the side surface of the flow path forming member 61 of the communication portion 60. The opening on the opposite side of the communication path 60 of the introduction path 70 is defined as a first opening 71. In addition, an opening that becomes a boundary with the communication portion 60 of the introduction path 70 is a second opening 72.

  As shown in FIG. 5, in this embodiment, the introduction path 70 is formed such that the center line L of the flow path portion 73 flows toward the center portion O of the opening 64 in the top view. Has been.

  Thus, the introduction path 70 is arranged along the one surface 31 of the closing plate 30, in other words, the first opening 71 and the second opening 72 are substantially perpendicular to the one surface 31 of the closing plate 30. An introduction path 70 is formed. As a result, the liquid to be treated supplied from the first opening 71 flows through the flow path portion 73 that is a hollow portion, and communicates with the communication portion 60 (flow path portion) via the second opening 72 along the closing plate direction. 62).

  As shown in FIG. 7, as described above, the introduction path 70 is provided in the communication part 60, whereby the flow direction of the liquid to be processed in the flow path part 62 includes the closing plate direction. Specifically, the liquid to be treated flows from the introduction path 70 toward the center of the communication part 60 along the closing plate direction. Then, the liquid to be processed hits the wall surface in the opposing flow path portion 62 and flows along the wall surface. In this way, the liquid to be treated flows so as to draw a semicircle on the upper half and lower half sides of the flow path portion 62 in the drawing.

  Therefore, the liquid to be treated can be distributed along the direction of the closing plate in the vicinity of the surface of the region other than the opening 22 of the closing plate 30 (the surface of the closing plate 30). Thereby, even if solids in the liquid to be processed such as “Sano” adhere to the region, the solids are pushed out by the liquid to be processed flowing along the closing plate direction and flow into the flow pipe 20. be able to. That is, it is possible to prevent solid matter from being deposited on the surface of the closing plate 30.

  Incidentally, if the flow direction of the liquid to be treated is a direction perpendicular to the closing plate 30 (or the perpendicular direction is dominant), the solid matter attached to the surface of the closing plate 30 is not pushed out in the closing plate direction. , Will continue to adhere as it is. For example, if it is a long and slender solid material such as a fiber, both ends of the two solid pipes 20 are hooked on the opening 22 and pressed against the closing plate 30 by the pressure of the liquid to be processed, thereby accumulating.

  As described above, by extending the introduction path 70 in the direction of the closing plate, the liquid to be processed is introduced into the communication portion 60 along the direction of the closing plate, but the second opening 72 is closed as much as possible. It is preferable to be close to the plate 30.

  For example, the angle θ formed by the straight line connecting the center O of the opening 64 and the center P of the second opening 72 and the surface of the opening 64 is preferably not less than 0 degrees and not more than 30 degrees.

  In this way, by making the second opening 72, that is, the introduction path 70 close to the closing plate 30, the direction in which the liquid to be treated flows is more dominant in the closing plate direction, and the solid plate is more reliably solidified. Objects can be pushed out toward the closing plate to prevent accumulation.

  Further, “supplying the liquid to be processed to the communication part 60 so as to increase the speed” means the outlet of the introduction path 70 rather than the flow velocity of the liquid to be processed in the first opening 71 which is the inlet of the introduction path 70. This means that the liquid to be processed is supplied to the communication unit 60 so that the flow rate of the liquid to be processed in the second opening 72 is higher.

  Specifically, the width of the introduction path 70 in the height direction (vertical direction in FIG. 6) is gradually narrowed from the first opening 71 side toward the second opening 72 side. Note that the width of the introduction path 70 in the width direction (vertical direction in FIG. 5) is constant. That is, the wall surface 74 on the lower surface side (lower side in FIG. 6) of the introduction path 70 is extended so as to be substantially parallel to the closing plate 30, and the wall surface 75 on the upper surface side (upper side in FIG. 6) of the introduction path 70 is The first opening 71 was tapered from the second opening 72 side.

  With the introduction path 70 having such a configuration, the liquid to be processed supplied from the first opening 71 can be accelerated and supplied from the second opening 72 to the communication unit 60.

  In this way, the liquid to be processed is accelerated and supplied to the communication portion 60. Therefore, even if solid matter adheres to the surface of the closing plate 30, it is pushed out more reliably in the direction of the closing plate to prevent accumulation. can do. Furthermore, since the introduction path 70 is configured in a tapered shape, the liquid to be processed can be accelerated without solid matter adhering to and depositing on the introduction path 70.

  The liquid to be processed is accelerated by configuring the introduction path 70 as described above. As such a configuration, the first opening 71 and the second opening 72 are preferably configured as follows. .

  For example, the opening area of the first opening 71 is S1, the opening area of the second opening 72 is S2, and the area of the opening 22 of the flow pipe 20 opened in the closing plate 30 (in this embodiment, seven Since the distribution pipe 20 is provided, the total area of the seven openings 22 is S3. The opening areas S1 and S3 are set so that a certain flow rate of the fluid to be processed flowing into the first opening 71 flows into the flow pipe 20 without stagnation. The area of the second opening 72 is smaller than the opening area S1. For example, the opening areas S1 and S3 are set to substantially the same area, and the opening area S2 is made smaller than them. In this way, the liquid to be processed that has flowed into the first opening 71 is accelerated toward the second opening 72, and the increased liquid to be processed flows into each flow pipe 20 without any delay. (There is no overflow from the communication part 60 or the introduction path 70). In addition, it is preferable that the solid material does not block the second opening 72. That is, it is preferable that the opening area S2 of the second opening 72 is larger than a predetermined dimension of the solid material.

  In this way, the first opening 71 and the second opening 72 are configured so that the solid matter is not blocked in the second opening 72 and the liquid to be processed is accelerated as much as possible. The processing liquid can be circulated faster along the closing plate direction, and solids can be more reliably pushed out in the closing plate direction to prevent accumulation.

  As described above, in the multitubular heat exchanger 1, the liquid to be treated is supplied to the first opening 71 of the introduction member 50, supplied to the communication portion 60 via the introduction path 70, and from there It distributes to each distribution pipe 20. The multi-tube heat exchanger 1 exchanges heat between the liquid to be processed flowing through each flow pipe 20 using a heat exchange medium introduced into the storage pipe 40.

  The introduction path 70 is configured to increase the speed of the liquid to be processed along the direction of the closing plate and then supply the liquid to the communication unit 60, so that solid matter adheres and accumulates on the surface of the closing plate 30. Can be prevented.

  As described above, the multi-tubular heat exchanger 1 does not adjust the interval between the openings 22 of the flow pipe 20 that appears on the closing plate 30 in accordance with the shape of the solid material, as in the related art. By controlling the flow rate and its direction, solid matter is prevented from being deposited on the surface of the closing plate 30. In other words, the multi-tube heat exchanger 1 can prevent the solid matter from being deposited in the liquid to be processed regardless of the arrangement of the flow pipe 20 housed in the housing pipe 40.

  Thereby, since it can design and manufacture irrespective of the shape of solid matter, it becomes unnecessary to design and produce another kind of multi-tubular heat exchanger 1 according to the solid matter, reducing the production cost, The manufacturing process can be simplified.

  Further, as the introduction member 50, the liquid to be processed can be supplied to the heat exchanger main body 10 so that the solid matter does not accumulate on the surface of the closing plate 30. Further, since the introduction member 50 is configured to be detachable from the heat exchanger main body 10, the introduction member 50 can be detached from the heat exchanger main body 10, and maintenance and replacement such as cleaning can be easily performed individually.

<Embodiment 2>
The introduction member 50 described in the first embodiment can also be used as a joining member that connects the plurality of heat exchanger bodies 10. FIG. 8 is a cross-sectional view of a main part of the multitubular heat exchanger according to the second embodiment. In addition, the same code | symbol is attached | subjected to the same thing as Embodiment 1, and the overlapping description is abbreviate | omitted.

  As shown in the figure, the multi-tube heat exchanger 1 </ b> A according to the present embodiment has two heat exchanger bodies 10, and an introduction member 50 is connected to each heat exchanger body 10.

  Each introduction member 50 is connected so that the first openings 71 of each introduction path 70 communicate with each other. In this way, the liquid to be treated flows sequentially through the flow pipe 20 of one heat exchanger body 10, the communication portion 60 of the introduction member 50 connected to the heat exchanger body 10, and the introduction path 70. And the said to-be-processed liquid distribute | circulates the introduction path 70 of the introduction member 50 connected to the other heat exchanger main body 10, the communication part 60, and the distribution | circulation pipe | tube 20 one by one.

  In this way, the introduction member 50 according to the present embodiment is used as a joining member that connects the heat exchanger main bodies 10 to each other, thereby preventing the accumulation of solid matter on the closing plate 30 and a plurality of heat exchanger main bodies. A long multi-tube heat exchanger 1A composed of 10 can be configured.

<Embodiment 3>
The introduction member 50 described in the second embodiment is used as a joining member that connects the plurality of heat exchanger main bodies 10, and the introduction path 70 is tapered by making the second opening 72 smaller than the first opening 71. By doing so, the speed of the liquid to be treated was increased. In the present embodiment, in the introduction member 50 that is also used as a joining member as described above, another mode for accelerating the liquid to be processed is exemplified.

  FIG. 9 is a cross-sectional view of a main part of the multitubular heat exchanger according to the third embodiment. In addition, the same code | symbol is attached | subjected to the same thing as Embodiment 1 and Embodiment 2, and the overlapping description is abbreviate | omitted.

  As shown in the figure, the multi-tube heat exchanger 1B according to the present embodiment has two (a pair of) heat exchanger bodies 10. The left side of the drawing is the heat exchanger body 10A, and the right side is the heat exchanger body 10B. Introducing members 50A and 50B are connected to these heat exchanger bodies 10A and 10B, respectively.

  The introduction members 50A and 50B are connected so that the first openings 71A and 71B of the introduction paths 70A and 70B communicate with each other (the communication introduction paths 70A and 70B correspond to the introduction path of claim 4). .) The introduction paths 70A and 70B are formed in a substantially cylindrical shape, and the shapes of the first opening 71A and the second opening 72A, and the first opening 71B and the second opening 72B are substantially the same. That is, in the introduction paths 70A and 70B of the two introduction members 50A and 50B connected to each other, the liquid to be treated flows at a substantially constant speed. These introduction paths 70A and 70B are extended in the direction along the closing plate 30 of each heat exchanger main body 10A and 10B.

  In the present embodiment, the liquid to be processed that flows through the heat exchanger main body 10A flows out to the communication portion 60A of the introduction member 50A, and the liquid to be processed is heated through the introduction path 70A, the introduction path 70B, and the communication section 60B. It flows into the flow pipe 20 of the exchanger body 10B.

  Here, as a configuration for accelerating the liquid to be processed, the opening diameter of the second opening 72A serving as a boundary between the communication portion 60A of the heat exchanger body 10A and the introduction path 70A is narrowed. That is, the opening area of the second opening 72A is smaller than the opening area of the opening of the flow pipe 20 of the heat exchanger body 10A. By setting it as such a structure, the to-be-processed liquid which flows in into the introduction path 70A can be accelerated.

  The second opening 72 serving as an outlet for the increased speed of the liquid to be processed is substantially the same as the opening area of the opening of the flow pipe 20 of the heat exchanger main body 10B. It is supplied to the communication part 60B as it is.

  Thus, also in the multi-tube heat exchanger 1B according to the present embodiment, the liquid to be processed which is accelerated in the direction of the closing plate is supplied in the vicinity of the closing plate 30 of the heat exchanger body 10B into which the liquid to be processed flows. It is possible to prevent the solid matter in the liquid to be treated from being deposited.

  In particular, the second opening that is the boundary between the first communication portion 60A corresponding to the upstream heat exchanger body 10A and the introduction path 70A can be provided without providing the introduction paths 70A and 70B with a structure for accelerating the liquid to be processed. By setting the opening area of the portion 72A in relation to the opening area of the opening 22 of the flow pipe 20 of the heat exchanger body 10A, the liquid to be processed can be accelerated.

<Other embodiments>
As mentioned above, although one Embodiment of this invention was described, the basic composition of this invention is not limited to what was mentioned above.

  For example, although the introduction member 50 is a separate member that can be attached to and detached from the heat exchanger body 10, the introduction member 50 may be integrated with the heat exchanger body 10.

  In addition, the introduction path 70 is configured in a tapered shape as a configuration for accelerating the liquid to be processed, but is not limited to such a mode. For example, the side surface of the introduction path 70 may be stepped, or the second opening 72 may be simply formed smaller than the first opening 71.

  Furthermore, as shown in FIG. 5, these are configured such that the center line L of the introduction path 70 passes through the central portion O of the communication portion 60, but the present invention is not limited to such a mode. For example, the liquid to be processed supplied from the introduction path 70 to the communication section 60 may be along the inner surface of the flow path section 62. Also with this configuration, the liquid to be treated forms a swirling flow that swirls in one direction within the communication portion 60. That is, also in such an aspect, the liquid to be processed can be circulated along the closing plate direction in the communication portion 60.

  In the second and third embodiments, the two introduction members 50 are connected to each other. However, even if the two introduction members 50 are integrally formed, the same effects can be obtained.

1, 1A, 1B Multi-tube heat exchanger (heat exchanger)
10, 10A, 10B Multi-tube heat exchanger body (Heat exchanger body)
20 distribution pipe 22 opening 30 closing plate 31 one side 40 storage pipe 50, 50A, 50B liquid introduction member (introduction member)
60, 60A, 60B Communication portion 70, 70A, 70B Introductory path 71, 71A, 71B First opening 72, 72A, 72B Second opening

Claims (5)

A plurality of distribution pipes through which the liquid to be treated containing solids circulates;
A closing plate to which the flow pipe is fixed so that the opening of the flow pipe is exposed on one surface;
A storage tube configured to store the flow tube therein and to allow a heat exchange medium to flow through the inside sealed by the closing plate;
A communication part that communicates in common with the opening of the flow pipe that is open on one side of the closing plate;
An introduction path that communicates with the communicating portion and introduces the liquid to be treated into the communicating portion;
The introduction passage is formed so as to supply the liquid to be processed to the communication portion so as to increase the speed in a direction toward the communication portion along one surface of the closing plate. Type heat exchanger. The multi-tube heat exchanger according to claim 1, wherein
The multi-tube heat exchanger is characterized in that the introduction path extends in a direction along one surface of the closing plate, and is narrowed toward the communication portion. In the multitubular heat exchanger according to claim 1 or 2,
The introduction path is formed in a tapered shape so that the width is narrowed from the first opening on the side opposite to the communication part of the introduction path to the second opening that is a boundary with the communication part. A multi-tube heat exchanger characterized by that. The multi-tube heat exchanger according to claim 1, wherein
At least a pair of multi-tubular heat exchanger bodies including the flow pipe, the closing plate, and the storage pipe;
A first communication part that communicates in common with the opening part of the flow pipe of one of the multi-tubular heat exchanger bodies, and a communication part that is common to the opening part of the flow pipe of the other multi-tube heat exchanger body A second communication part, and a liquid introduction member provided with the introduction path connecting the first communication part and the second communication part,
In the liquid introduction member, the area of the opening serving as a boundary between the first communication portion connected to one of the multi-tubular heat exchanger bodies and the introduction path has one multi-tubular heat exchanger. A multi-tubular heat exchanger characterized in that it is formed to be narrower than the area of the opening of the flow pipe of the main body. A plurality of distribution pipes through which the liquid to be treated containing solids circulates;
A closing plate to which the flow pipe is fixed so that the opening of the flow pipe is exposed on one surface;
A liquid introduction member attached to a multi-tubular heat exchanger main body having a housing pipe configured to house the flow pipe therein and have a heat exchange medium flowed inside sealed by the closing plate; There,
A communication part that is detachably attached to the storage pipe and communicates in common with the opening of the flow pipe that is open on one side of the closing plate;
An introduction path that communicates with the communicating portion and introduces the liquid to be treated into the communicating portion;
The introduction path is formed so as to supply the liquid to be processed to the communication portion so as to increase the speed in a direction toward the communication portion along one surface of the closing plate. Element.

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